Gregor Hagedorn, Daniel Mietchen, Robert A. Morris, Donat Agosti, Lyubomir Penev, Walter G. Berendsohn, and Donald Hobern, Creative Commons licenses and the non-commercial condition… (2011)
“ Creative Commons licenses are not antagonistic to copyright – they are based on it. A violation of a CC license is a copyright violation. CC licenses replace individual contracts (that the copyright owner and the user of a work may negotiate) with a standardized license. Managing individual licenses incurs a high legal and management overhead (which induces many publishers not to negotiate licenses, but rather to demand total transfer of copyright) . ”
